40992947 has 2 divisors, whose sum is σ = 40992948. Its totient is φ = 40992946.

The previous prime is 40992911. The next prime is 40992949. The reversal of 40992947 is 74929904.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40992947 - 2¹⁸ = 40730803 is a prime.

Together with 40992949, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 40992898 and 40992907.

It is not a weakly prime, because it can be changed into another prime (40992949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20496473 + 20496474.

It is an arithmetic number, because the mean of its divisors is an integer number (20496474).

Almost surely, 2^40992947 is an apocalyptic number.

40992947 is a deficient number, since it is larger than the sum of its proper divisors (1).

40992947 is an equidigital number, since it uses as much as digits as its factorization.

40992947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 40992947 is about 6402.5734669740. The cubic root of 40992947 is about 344.8019503221.

The spelling of 40992947 in words is "forty million, nine hundred ninety-two thousand, nine hundred forty-seven".